Materials Literature
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We evaluate a method for biofilm disinfection by raising biofilm temperature using the photothermal effect of a gold nanorod cluster. Gold nanorods (GNRs) are capable of generating enough heat to lyse bacteria by heating biofilm via laser irradiation. To test this, GNRs are synthesized using wet chemistry and a single…
Herein, we report our success on the large-scale online preparation of surface-silver-metallized polyimide (PI) fibers by utilizing silver ammonia complex cation ([Ag(NH3)2](+)) as the silver (Ag) precursor and pyromellitic dianhydride/4,4'-oxidianiline (PMDA/4,4'-ODA)-based polyimide as the matrix via a direct ion-ex…
Abstract Atomic force imaging and spectroscopy provide unique tools for investigating molecular interactions and dynamics in biomolecular and biomineral systems in situ. Herein, three recent examples of methods used to gain mechanistic insights into the self‐assembly of protein matrices and biomolecular controls over…
Hydrogenation of TiO2 is relevant to hydrogen storage and water splitting. We have carried out a detailed mechanistic study on TiO2 hydrogenation through H and∕or H2 diffusion from the surface into subsurface layers of anatase TiO2 (101) by periodic density functional theory calculations implementing on-site Coulomb i…
Hierarchical and hollow CuInS 2 microspheres are synthesized on the basis of sacrificial templates with solid and hollow CuS microspheres as sacrificial templates, respectively. Transformations from CuS solid microspheres to CuInS 2 hierarchical microspheres and CuS hollow microspheres to CuInS 2 hollow microspheres c…
Photochromism: Functionalization of a diarylethene derivative with π-conjugated oligomers resulted in a higher aggregation capability in the open rather than the closed form due to tunable steric hindrance of methyl groups of the diarylethene core (see scheme). Distinct aggregation abilities of the open and the closed…
The scope of this Perspective is to highlight the potential of nanoscale self-ordering/self-assembling nanocarbons-fullerenes, single-wall carbon nanotubes, and graphene-en route toward novel charge transfer hybrids that unify several functions such as light harvesting, charge separation, and, eventually, catalysis. A…
Fluorescein isothiocyanate (FITC), a fluorescent probe, is coupled to amphiphilic monomethoxy poly(ethylene glycol)-block-poly(ε-caprolactone) (mPEG-PCL) copolymers. FITC-labeled mPEG-PCL copolymers self-assemble into micelles through the solvent evaporation method. The cellular internalization is examined using fluor…
Fundamental advances in biotechnology, medicine, environment, electronics and energy require methods for precise control of spatial organization at the nanoscale. Assemblies that rely on highly specific biomolecular interactions are an attractive approach to form materials that display novel and useful properties. Her…
ABSTRACT A series of electroactive polyetherimides (PEIs) with triphenylamine (TPA) units were prepared from the polycondensation reactions of 4,4′‐bis( p ‐aminophenoxy)triphenylamine with aromatic tetracarboxylic dianhydrides via a conventional two‐step technique. The PEIs showed high thermal stability, with glass‐tr…
Magnesium is an excellent candidate as lightweight structural material, but has strong plastic anisotropy, and the activation of, operation of, and competition between different slip and twinning systems remain active areas of research. Here, the nucleation of twinning and basal slip in Mg single-crystalline nanopilla…
The fabrication of carbon (C) doped hexagonal boron nitride (h-BN) has attracted more and more attention due to its widespread applications. A novel method of constructing custom-designed C doped h-BN via CO molecules interaction with the vacancy defect h-BN is demonstrated in this paper using density functional theor…
Vanadium pentoxide (V2O5) thin films were grown on indium tin oxide-coated flexible Kapton substrates by home-built activated reactive evaporation technique. Film depositions were carried out at optimised oxygen partial pressure of 1 × 10−3 Torr and plasma power of 8 W, and we investigated their microstructural and op…
We prepared and evaluated transferrin (Tf) and monoclonal antibody (mAb) 2C5-modified dual ligand-targeted poly(ethylene glycol)-phosphatidylethanolamine micelles loaded with a poorly soluble drug, R547 (a selective adenosine triphosphate-competitive cyclin-dependent kinase inhibitor) for enhancement of targeting effi…
Recent works have given indication that the defect-induced magnetism in diluted magnetic semiconductors (DMSs), transition metal oxides (TMOs), and related materials is facilitated and enhanced by codoping and the synergistic action among the codopants. In the present work we demonstrate that the proposed defect-induc…
ABSTRACT A theoretical model was developed to simulate the polyurethane foaming process for a rigid foam. In the model, multiple ordinary differential equations were solved by MATLAB and the model was able to predict temperature profiles by inputting foam recipe information. This initial study on foam modeling focusse…
Broccoli (Brassica oleracea L. var. Italica) florets were packaged in low-density polyethylene (LDPE) bags with or without ethylene adsorber under passive modified atmosphere and then stored at 4°C for 20 days. LDPE films with (8% Tazetut® masterbatch, M2) or without ethylene adsorber (M1) were tested. The effects of…
Natural fibers are seeing increased use in composite applications due to their reduced cost, low density, and environmental benefits (more sustainable and lower carbon footprint). Although many natural fiber systems have been examined over the last decade, there have been relatively few studies which have compared a v…
Thermoelectric devices are solid-state devices. Semiconductor thermoelectric cooling, based on the Peltier effect, has interesting capabilities compared to conventional cooling systems. In this work second law analysis of thermoelectric coolers has been done with the help of exergy destruction. In the first part, perf…
Smart materials, which can change properties when an external stimulus is applied, can be used for the targeted drug delivery of an active molecule to a specific site in the correct dosage. Different materials such as liposomes, polymeric systems, nanomaterials and hydrogels can respond to different stimuli such as pH…